From: Andrey Ryabinin <aryabinin@virtuozzo.com>
To: Andrey Konovalov <andreyknvl@google.com>,
Alexander Potapenko <glider@google.com>,
Dmitry Vyukov <dvyukov@google.com>,
Jonathan Corbet <corbet@lwn.net>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Marc Zyngier <marc.zyngier@arm.com>,
Christopher Li <sparse@chrisli.org>,
Christoph Lameter <cl@linux.com>,
Pekka Enberg <penberg@kernel.org>,
David Rientjes <rientjes@google.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Andrew Morton <akpm@linux-foundation.org>,
Masahiro Yamada <yamada.masahiro@socionext.com>,
Michal Marek <michal.lkml@markovi.net>,
Mark Rutland <mark.rutland@arm.com>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Yury Norov <ynorov@caviumnetworks.com>,
Nick Desaulniers <ndesaulniers@google.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Kristina Martsenko <kristina.martsenko@arm.com>,
Punit Agrawal <punit.agrawal@arm.com>,
Dave Martin <Dave.Martin@arm.com>,
Michael Weiser <michael.weiser@gmx.de>,
James Morse <james.morse@arm.com>,
Julien Thierry <julien.thierry@arm.com>,
Steve Capper <steve.capper@arm.com>,
Tyler Baicar <tbaicar@codeaurora.org>,
"Eric W . Biederman" <ebiederm@xmission.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@kernel.org>,
Paul Lawrence <paullawrence@google.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
David Woodhouse <dwmw@amazon.co.uk>,
Sandipan Das <sandipan@linux.vnet.ibm.com>,
Kees Cook <keescook@chromium.org>,
Herbert Xu <herbert@gondor.apana.org.au>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Arnd Bergmann <arnd@arndb.de>,
kasan-dev@googlegroups.com, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu, linux-sparse@vger.kernel.org,
linux-mm@kvack.org, linux-kbuild@vger.kernel.org
Cc: Kostya Serebryany <kcc@google.com>,
Evgeniy Stepanov <eugenis@google.com>,
Lee Smith <Lee.Smith@arm.com>,
Ramana Radhakrishnan <Ramana.Radhakrishnan@arm.com>,
Jacob Bramley <Jacob.Bramley@arm.com>,
Ruben Ayrapetyan <Ruben.Ayrapetyan@arm.com>,
Kees Cook <keescook@google.com>, Jann Horn <jannh@google.com>,
Mark Brand <markbrand@google.com>
Subject: Re: [RFC PATCH v2 08/15] khwasan: add tag related helper functions
Date: Fri, 30 Mar 2018 19:13:08 +0300 [thread overview]
Message-ID: <a724eee6-7aff-df8b-de2b-8e9446e94623@virtuozzo.com> (raw)
In-Reply-To: <b79947167d09478d3f61d2ec8de37322c0e1fe92.1521828274.git.andreyknvl@google.com>
On 03/23/2018 09:05 PM, Andrey Konovalov wrote:
> diff --git a/mm/kasan/khwasan.c b/mm/kasan/khwasan.c
> index 24d75245e9d0..da4b17997c71 100644
> --- a/mm/kasan/khwasan.c
> +++ b/mm/kasan/khwasan.c
> @@ -39,6 +39,57 @@
> #include "kasan.h"
> #include "../slab.h"
>
> +int khwasan_enabled;
This is not unused (set, but never used).
> +
> +static DEFINE_PER_CPU(u32, prng_state);
> +
> +void khwasan_init(void)
> +{
> + int cpu;
> +
> + for_each_possible_cpu(cpu) {
> + per_cpu(prng_state, cpu) = get_random_u32();
> + }
> + WRITE_ONCE(khwasan_enabled, 1);
> +}
> +
next prev parent reply other threads:[~2018-03-30 16:12 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-23 18:05 [RFC PATCH v2 00/15] khwasan: kernel hardware assisted address sanitizer Andrey Konovalov
2018-03-23 18:05 ` [RFC PATCH v2 01/15] khwasan, mm: change kasan hooks signatures Andrey Konovalov
2018-03-23 18:05 ` [RFC PATCH v2 02/15] khwasan: move common kasan and khwasan code to common.c Andrey Konovalov
2018-03-23 18:05 ` [RFC PATCH v2 03/15] khwasan: add CONFIG_KASAN_CLASSIC and CONFIG_KASAN_TAGS Andrey Konovalov
2018-03-24 8:43 ` Ingo Molnar
2018-03-27 16:23 ` Andrey Konovalov
2018-03-27 20:02 ` Ingo Molnar
2018-03-23 18:05 ` [RFC PATCH v2 04/15] khwasan, arm64: adjust shadow size for CONFIG_KASAN_TAGS Andrey Konovalov
2018-03-23 18:05 ` [RFC PATCH v2 05/15] khwasan: initialize shadow to 0xff Andrey Konovalov
2018-03-30 16:07 ` Andrey Ryabinin
2018-04-03 14:43 ` Andrey Konovalov
2018-03-23 18:05 ` [RFC PATCH v2 06/15] khwasan, arm64: untag virt address in __kimg_to_phys Andrey Konovalov
2018-03-23 18:05 ` [RFC PATCH v2 07/15] khwasan, arm64: fix up fault handling logic Andrey Konovalov
2018-03-23 18:05 ` [RFC PATCH v2 08/15] khwasan: add tag related helper functions Andrey Konovalov
2018-03-30 16:13 ` Andrey Ryabinin [this message]
2018-04-03 14:45 ` Andrey Konovalov
2018-03-23 18:05 ` [RFC PATCH v2 09/15] khwasan, kvm: untag pointers in kern_hyp_va Andrey Konovalov
2018-03-23 18:05 ` [RFC PATCH v2 10/15] khwasan, arm64: enable top byte ignore for the kernel Andrey Konovalov
2018-03-23 18:05 ` [RFC PATCH v2 11/15] khwasan, mm: perform untagged pointers comparison in krealloc Andrey Konovalov
2018-03-24 8:29 ` Ingo Molnar
2018-03-27 12:20 ` Andrey Konovalov
2018-03-27 20:01 ` Ingo Molnar
2018-03-23 18:05 ` [RFC PATCH v2 12/15] khwasan: add bug reporting routines Andrey Konovalov
2018-03-23 18:05 ` [RFC PATCH v2 13/15] khwasan: add hooks implementation Andrey Konovalov
2018-03-30 17:47 ` Andrey Ryabinin
2018-04-03 14:59 ` Andrey Konovalov
2018-04-04 12:39 ` Andrey Ryabinin
2018-04-04 17:00 ` Andrey Konovalov
2018-04-05 13:02 ` Andrey Ryabinin
2018-04-06 12:14 ` Andrey Konovalov
2018-04-06 12:27 ` Andrey Ryabinin
2018-04-10 16:07 ` Andrey Konovalov
2018-04-10 16:31 ` Andrey Ryabinin
2018-04-12 16:45 ` Andrey Konovalov
2018-04-12 17:20 ` Andrey Ryabinin
2018-04-12 17:37 ` Andrey Konovalov
2018-03-23 18:05 ` [RFC PATCH v2 14/15] khwasan, arm64: add brk handler for inline instrumentation Andrey Konovalov
2018-03-23 18:05 ` [RFC PATCH v2 15/15] khwasan: update kasan documentation Andrey Konovalov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=a724eee6-7aff-df8b-de2b-8e9446e94623@virtuozzo.com \
--to=aryabinin@virtuozzo.com \
--cc=Dave.Martin@arm.com \
--cc=Jacob.Bramley@arm.com \
--cc=Lee.Smith@arm.com \
--cc=Ramana.Radhakrishnan@arm.com \
--cc=Ruben.Ayrapetyan@arm.com \
--cc=akpm@linux-foundation.org \
--cc=andreyknvl@google.com \
--cc=ard.biesheuvel@linaro.org \
--cc=arnd@arndb.de \
--cc=catalin.marinas@arm.com \
--cc=cl@linux.com \
--cc=corbet@lwn.net \
--cc=dvyukov@google.com \
--cc=dwmw@amazon.co.uk \
--cc=ebiederm@xmission.com \
--cc=eugenis@google.com \
--cc=geert@linux-m68k.org \
--cc=glider@google.com \
--cc=gregkh@linuxfoundation.org \
--cc=herbert@gondor.apana.org.au \
--cc=iamjoonsoo.kim@lge.com \
--cc=james.morse@arm.com \
--cc=jannh@google.com \
--cc=jpoimboe@redhat.com \
--cc=julien.thierry@arm.com \
--cc=kasan-dev@googlegroups.com \
--cc=kcc@google.com \
--cc=keescook@chromium.org \
--cc=keescook@google.com \
--cc=kristina.martsenko@arm.com \
--cc=kvmarm@lists.cs.columbia.edu \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-doc@vger.kernel.org \
--cc=linux-kbuild@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-sparse@vger.kernel.org \
--cc=marc.zyngier@arm.com \
--cc=mark.rutland@arm.com \
--cc=markbrand@google.com \
--cc=michael.weiser@gmx.de \
--cc=michal.lkml@markovi.net \
--cc=mingo@kernel.org \
--cc=ndesaulniers@google.com \
--cc=paullawrence@google.com \
--cc=penberg@kernel.org \
--cc=punit.agrawal@arm.com \
--cc=rientjes@google.com \
--cc=sandipan@linux.vnet.ibm.com \
--cc=sparse@chrisli.org \
--cc=steve.capper@arm.com \
--cc=suzuki.poulose@arm.com \
--cc=tbaicar@codeaurora.org \
--cc=tglx@linutronix.de \
--cc=will.deacon@arm.com \
--cc=yamada.masahiro@socionext.com \
--cc=ynorov@caviumnetworks.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox